In March of last year after months of looking at used boats, i bought a new left over 2018 1442 Alweld jon from a west coast dealer, Advance Marine, in Holiday Fl for $1495. A few weeks later i bought a new 20 horse Mercury electric start from them for $2450, again a leftover model.
I also bought a new EZ Loader trailer for it here on the East coast for $1000. So for less than $5000 plus tax of coarse i had a brand new outfit. I realize that it isnt as big as the one your looking for, but Alweld makes bigger ones also. It might pay to stop looking for what you probably wont find used anyway.